Clostridium botulinum
the agent causing botulism in humans and waterfowl, as well as limberneck in fowl, certain forms of forage poisoning in cattle and horses in Australia, and lamziekte in cattle in South Africa. It produces a powerful exotoxin that is resistant to proteolytic digestion, and is divided into types A, B, C alpha and beta, D, E, F, and G on the basis of the immunologic specificity of the toxin.
Medical dictionary.
2011.